ArticleEye (London, England)2022
Preliminary clinical validation of a new picture-based visual acuity test in children with amblyopia: a comparison of The Auckland Optotypes and crowded logMAR letters.
Article in Eye (London, England), 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed, 4 citations in OpenAlex.
- Psychometric Performance of Children With Amblyopia During a Tablet-Based Adaptive Visual Acuity Assessment.Investigative ophthalmology & visual science · 2026Article
- Letter Distortion Mapping in Amblyopia: Spatial Patterns, Stability, and Relationship to Visual Acuity.Investigative ophthalmology & visual science · 2025Article
- Visual training system 4: a promising adjuvant therapy for ocular accommodative function and visual acuity improvement in refractive amblyopia patients.American journal of translational research · 2024Article
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Authors and funding
6 authors at 4 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND/
aimsAmblyopia is the most common visual deficit in children and accurate visual acuity (VA) assessment is essential for diagnosis. While ETDRS high-contrast logMAR VA is the reference standard test for adults, less agreement exists for pre-literate children. A new picture optotype acuity test (The Auckland Optotypes [TAO]) has shown favourable comparison to letter acuity charts but has not yet been evaluated in children with amblyopia. This study aimed to compare VA obtained using TAO to crowded logMAR letters in children age 5-8 years with amblyopia.
methodsChildren with amblyopia (n = 54 [20.37% strabismic, 18.52% anisometropic, 61.11% mixed], mean age 78.30 ± 11.72 months) were recruited from paediatric ophthalmology/orthoptic clinics at Moorfields Eye Hospital NHS Foundation Trust, London, and Cambridge Community Services NHS Trust, Bedford. Best-corrected VA was measured in both the amblyopic eye (AE) and fellow eye (FE) using TAO and a crowded letter acuity chart. Bland-Altman analysis was used to measure 95% limits of agreement (LoA) for VA measures captured (AE, FE and interocular difference [IOD]).
resultsGood agreement between TAO and letter VA measurement was observed (mean bias: AE -0.01, FE 0.01, IOD -0.02). For AE measures 95% LoA were from -0.25 to 0.24 logMAR, this being similar for FE (-0.24 to 0.25) and IOD measures (-0.30 to 0.27).
conclusionTAO and letters elicited similar VA in children with amblyopia. TAO could be a useful picture-based chart for paediatric vision assessment.
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